I pulled a list of area Bradley Instructors from the Bradley website. I also received a list of area childbirth instructors (all kinds) from my midwives. I called three or four instructors to see when they had classes starting, what their fees were, and to get a 'feel' for them. There were more differences between Bradley instructors than I expected. The instructor I ended up seeing wasn't even on my midwives' list. I LOVED her.
You could get yourself known in local MOMs clubs, LLL meetings, visit your local birthing circle, ICAN, etc ...